[Dovecot] LDAP: bind to LDAP server instead of retreiving a password from it?

Hi,

Dovecot currently treats an LDAP user/password database the same way as a text or SQL based database: it just tries to retreive the (hashed) password for a given username. LDAP however has the capability to authenticate the user itself: dovecot could try to bind to LDAP with the given username and password, and if authentication succeeded, the LDAP server returns the other info (uid, homedir, ...), but not the password. I know at least qmail's pop3 server uses LDAP this way. Could this authentication mechanism be implemented in Dovecot as well?

Geert